In nitrile reactions or packaging film, Polymeric Acrylonitrile spurs new R&D ideas. This Du Pont polymer is both an intermediate and a resin. Polymeric acrylonitrilethe intermediate: takes part in many nitrile reactions, converting to amides, carboxy groups, esters, and amines. It can be hydrolyzed to an anionic, water-soluble polymer which will coagulate particles or increase the viscosity of water. Polymeric acrylonitrile, the resin: can be cast from a solvent to produce a transparent, heat-resistant film which is impermeable to oxygen and other gases, suggesting its utility as a protective food wrap.* This film withstands acids, ultraviolet light and most solvents. Investigate the possibility of coating other polymers with polymeric acrylonitrile to reduce gas transmission or improve chemical resistance. Other facts about polymeric acrylonitrile: • A white powder, stable to 150°C. • Soluble in several polar organic solvents and aqueous salt solutions. • Two grades available: Type A-Homopolymer, Molecular Wt-150,000 Type A-7-Copolymer with 6% methyl acrylate, Molecular Wt-100,000 • Available in commercial quantities. To evaluate Du Pont polymeric acrylonitrile for your R&D work, write on company letterhead for technical information and a sample. DuPont Company (J.S.-Rm. G39642, Wilmington, DE 19898; EUROPE-P.O. Box CH-1211, Geneva 25, Switzerland; JAPAN -11-39 Akasaka 1-chome, Minato -ku, Tokyo 107. *Food wrappings require F.DA. approval.
Idea Intermediates
